Group feed utilisation/allowance event

[cookeac]

Now that we can support group events, it would be useful to have a group feed utilisation event analogous to the individual animal feed utilisation event.

[cookeac]

Proposed fields for an icarGroupFeedingEventResource based on icarGroupEventCoreResource.
Note that as it is for a group, it is not a feed intake - the individual animal intakes are not known, so you cannot convert a group feeding event to a set of individual animal feed intakes.

Proposed fields:

Attribute	Type	Description
feedingStartDateTime	icarDateTimeType	The RFC3339 UTC moment the feeding started. (Note that eventDateTime represents the end of feeding.
feedVisitDuration	icarFeedDurationType	The length of time of the feeding.
feedPerAnimal	array of icarConsumedFeedType	Gives the feed offered to and consumed per animal (average).
rationPerAnimal	array of icarConsumedRationType	Gives the ration offered to and consumed per animal (average).
device	icarDeviceReferenceType	Optional information about a device used for the feeding, if relevant.

[cookeac]

Draft PR for review #396. Still to add to the URL schemes.

[cookeac]

Suggestion - to identify groups (where we do not have animal identifiers) consider adding reference - a string - to the icarInventoryClassification.

[ErikUniformAgri]

Suggest to add dryMatterPercentage to icarConsumedFeedType and icarConsumedRationType

[cookeac]

We agreed with adding dryMatterPercentage.
We would like to change the way times are managed:

• eventDateTime is the time that feed is available to animals (effectively the start date time for animals eating)
• feedingEndDateTime (if supplied) is the end time at which animals could consume the feed.

Remove the feedingStartDateTime (this is now replaced by eventDateTime), and feedVisitDuration.